Contact information

Helsinki Tallinn
Jaakob Solla
Jaakob Solla
Executive vice president
+358405119975
Tapani Eronen
Tapani Eronen
VP, Lead architect, office manager Helsinki
+358405782273
Berit Freivald
Berit Freivald
VP, Lead architect, country manager
+37256621838
J-P Lehtinen
J-P Lehtinen
VP, Lead architect, housing and hybrid design
+358400440524
Kyösti Meinilä
Kyösti Meinilä
VP, Lead architect
+358503630678
Tuomas Seppänen
Tuomas Seppänen
VP, Lead architect, property development and planning
+358400575517
Liisa Tuohimaa
Liisa Tuohimaa
VP, Lead architect, innovation and sustainability
+358503634074
Harri Ahokas
Harri Ahokas
Lead architect, technology
+358503227585
Matti Anttila
Matti Anttila
Lead architect, strategic development and sales
+358408613740
Anssi Hakarinne
Anssi Hakarinne
Head of MedTech Unit
+358406598300
Agu Külm
Agu Külm
Lead architect, hospital design
+358414622977
Juha Lehtonen
Juha Lehtonen
Lead architect, industrial and premises
+358400883330
Hanna Rantanen
Hanna Rantanen
Marketing & development director
+358503652795
Anne Routaniemi
Anne Routaniemi
Lead designer, interior design
+358407516039
Milja Virkkunen
Milja Virkkunen
Lead architect, renovation design
+358505938231
Nina Väistö
Nina Väistö
Lead architect, hospital and healthcare design
+358505674397

Our locations

We are always looking for skilled architecture students to join our team!

Office • Helsinki

Ruoholahdenkatu 21, 00180 Helsinki
Tel. +358 20 791 1555
one@onearchitects.fi

Good enough isn’t. Our new office located in Kamppi, in the city center, is a house of 80 skilled architects and interior architects. Welcome to meet and greet us!

Office • Tallinn

Rotermanni 18/1, 10111 Tallinn, Estonia
Tel. +372 525 2184
one@onearchitects.ee

We have the courage to do things differently. Our compentent team of architects in Tallinn is working in the modern Rotermanni quarter. We are happy to help!

Invoicing details • Helsinki

Billing addresses:
ONE Architects Oy
Puutarhakatu 10, FI-33210 Tampere
Company ID: 0979166-2

Basware service ID: BAWCFI22
Electronic invoice address: 003709791662

Email address (PDF-invoices):
aw2-architects@bscs.basware.com

We no longer accept paper invoice.

Invoicing details • Tallinn

Billing addresses:
ONE Architects Oy Eesti filiaal
Rotermanni 18/1, EE-10111 Tallinn 

Reg.nr: 14368643 

KMKR nr: EE101441034

Bank details: 

Swedbank EE932200221068311015 

SWIFT kood/BIC: HABAEE2X

Email address (PDF-invoices): kairi@ykssarv.ee

Let’s Connect! How Can We Help?